Genetics Quiz

What is a gene?

• A part of DNA that decides specific traits in an animal.

• The physical appearance of an animal.

• The process of passing traits from parents to offspring.

• Different versions of a gene that can determine traits.

What is a genotype?

• The actual combination of alleles an animal has for a specific trait.

• The physical appearance of an animal.

• A part of DNA that decides specific traits in an animal.

• The process of passing traits from parents to offspring.

Which sentence best describes a dominant allele?

• If one parent has a dominant allele for a curly coat, the calf will likely have a curly coat too.

• A calf will only have a straight coat if it inherits the recessive allele from both parents.

• The genotype of a cow can tell us whether it has the genes for a dominant or recessive coat color.

• Heredity is why a calf might look similar to its mother or father.

What does the phenotype of a cow show?

• Whether it has a curly or straight coat.

• The actual combination of alleles an animal has.

• A part of DNA that decides specific traits in an animal.

• Different versions of a gene that can determine traits.

What is the role of a gene in an animal?

• To decide specific traits in an animal.

• To determine the physical appearance of an animal.

• To pass traits from parents to offspring.

• To have different versions that can determine traits.

What does "heterogeneous" mean in genetics?

• Having the same alleles for a trait

• Having different alleles for a trait

• Traits passed from parents to offspring

• Genes located close to each other

Which of the following is an example of a homogeneous trait?

• A cow with one black and one brown allele

• A cow with two black alleles

• A calf inheriting strong legs

• Linked genes affecting color

What does "inherited" mean in the context of genetics?

• Having different alleles for a trait

• Genes located close to each other

• Traits passed down from parents to offspring

• Having the same alleles for a trait

What is an example of an inherited trait?

• A cow with two brown alleles

• A calf inheriting its mother's strong legs

• Linked genes affecting size

• Having different alleles for a trait

What are "linked genes"?

• Genes that are located close to each other on a chromosome

• Traits passed down from parents to offspring

• Having different alleles for a trait

• Having the same alleles for a trait